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BOSTON MARATHON 2023

Andrew Thai

Bib: 8456•M

KY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:04
Rank: #4513
Start → 5K
21:04 | 6:47/mi
10K· 6.21 mi
42:32
Rank: #5378 (-865)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:04:27
Rank: #5959 (-581)
10K → 15K
21:55 | 7:03/mi
20K· 12.43 mi
1:26:47
Rank: #6254 (-295)
15K → 20K
22:20 | 7:11/mi
Half· 13.11 mi
1:31:30
Rank: #6246 (+8)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:49:17
Rank: #6419 (-173)
Half → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:15:25
Rank: #7384 (-965)
25K → 30K
26:08 | 8:25/mi
20M
2:27:08
Rank: #7844 (-460)
30K → 20M
11:43 | 8:37/mi
21M
2:36:29
Rank: #8277 (-433)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
2:42:47
Rank: #8524 (-247)
21M → 35K
6:18 | 8:25/mi
23M
2:54:18
Rank: #9062 (-538)
35K → 23M
11:31 | 9:12/mi
24M
3:02:49
Rank: #9272 (-210)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:10:20
Rank: #9501 (-229)
24M → 40K
7:31 | 8:47/mi
25.2M
3:13:57
Rank: #9695 (-194)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
3:22:28
Rank: #9868 (-173)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:30
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:50:58
Pace8:28 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2321:046:4721:04
6:47
-
10K
6.21 mi11:07:5142:326:5121:28
6:55
+0:08
15K
9.32 mi11:29:461:04:276:5521:55
7:03
+0:08
20K
12.43 mi11:52:061:26:476:5922:20
7:11
+0:08
Half
13.11 mi11:56:491:31:306:594:43
6:55
-0:16
25K
15.53 mi12:14:361:49:177:0217:47
7:20
+0:25
30K
18.64 mi12:40:442:15:257:1626:08
8:25
+1:05
20M
20.00 mi12:52:272:27:087:2111:43
8:37
+0:12
21M
21.00 mi13:01:482:36:297:279:21
9:21
+0:44
35K
21.75 mi13:08:062:42:477:296:18
8:25
-0:56
23M
23.00 mi13:19:372:54:187:3511:31
9:12
+0:47
24M
24.00 mi13:28:083:02:497:378:31
8:31
-0:41
40K
24.85 mi13:35:393:10:207:397:31
8:47
+0:16
25.2M
25.20 mi13:39:163:13:577:423:37
10:29
+1:42
Finish
26.22 mi13:47:473:22:287:448:31
8:21
-2:08

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:47 /mi

Average Pace

7:44 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:17

54% of race

Time at Steady Pace

1:08:42

34% of race

Time at Slower Pace

24:29

12% of race

Average Pace: 7:43 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:46:2321:046:4721:04
6:47
#4513
10K
6.21 mi11:07:5142:326:5121:28
6:55
#5378
15K
9.32 mi11:29:461:04:276:5521:55
7:03
#5959
20K
12.43 mi11:52:061:26:476:5922:20
7:11
#6254
Half
13.11 mi11:56:491:31:306:594:43
6:55
#6246
25K
15.53 mi12:14:361:49:177:0217:47
7:20
#6419
30K
18.64 mi12:40:442:15:257:1626:08
8:25
#7384
20M
20.00 mi12:52:272:27:087:2111:43
8:37
#7844
21M
21.00 mi13:01:482:36:297:279:21
9:21
#8277
35K
21.75 mi13:08:062:42:477:296:18
8:25
#8524
23M
23.00 mi13:19:372:54:187:3511:31
9:12
#9062
24M
24.00 mi13:28:083:02:497:378:31
8:31
#9272
40K
24.85 mi13:35:393:10:207:397:31
8:47
#9501
25.2M
25.20 mi13:39:163:13:577:423:37
10:29
#9695
Finish
26.22 mi13:47:473:22:287:448:31
8:21
#9868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4513421542156885(Top 26%)6158(Top 41%)6158(Top 117%)
10K6.21 mi3.10 mi5378-8654968-7534968-7536213(Top 23%)5635(Top 37%)5635(Top 107%)
15K9.32 mi3.11 mi5959-5815446-4785446-4786885(Top 26%)6158(Top 41%)6158(Top 117%)
20K12.43 mi3.11 mi6254-2955668-2225668-2227030(Top 26%)6236(Top 41%)6236(Top 118%)
Half13.11 mi0.68 mi6246+8566856686102(Top 23%)5572(Top 37%)5572(Top 105%)
25K15.53 mi2.42 mi6419-1735793-1255793-1257509(Top 28%)6493(Top 43%)6493(Top 123%)
30K18.64 mi3.11 mi7384-9656489-6966489-69613755(Top 52%)9550(Top 63%)9550(Top 181%)
20M20.00 mi1.36 mi7844-4606758-2696758-26914365(Top 54%)9711(Top 64%)9711(Top 184%)
21M21.00 mi1.00 mi8277-4337016-2587016-25815222(Top 57%)10015(Top 66%)10015(Top 189%)
35K21.75 mi0.75 mi8524-2477154-1387154-13814793(Top 56%)9773(Top 64%)9773(Top 185%)
23M23.00 mi1.25 mi9062-5387458-3047458-30417016(Top 64%)10690(Top 70%)10690(Top 202%)
24M24.00 mi1.00 mi9272-2107554-967554-9614533(Top 55%)9530(Top 63%)9530(Top 180%)
40K24.85 mi0.85 mi9501-2297662-1087662-10815003(Top 56%)9676(Top 64%)9676(Top 183%)
25.2M25.20 mi0.35 mi9695-1947756-947756-9418985(Top 71%)11441(Top 75%)11441(Top 216%)
Finish26.22 mi1.02 mi9868-1737822-667822-6614412(Top 54%)9432(Top 62%)9432(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6885

Males

6158

M18-39

6158

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6213

Males

5635

M18-39

5635

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6885

Males

6158

M18-39

6158

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

7030

Males

6236

M18-39

6236

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6102

Males

5572

M18-39

5572

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7509

Males

6493

M18-39

6493

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13755

Males

9550

M18-39

9550

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14365

Males

9711

M18-39

9711

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15222

Males

10015

M18-39

10015

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14793

Males

9773

M18-39

9773

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

17016

Males

10690

M18-39

10690

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14533

Males

9530

M18-39

9530

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15003

Males

9676

M18-39

9676

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18985

Males

11441

M18-39

11441

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14412

Males

9432

M18-39

9432

Passing Analysis

Category:
Athletes Passed
260*
Passed By
5615
Net Change
-5355
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4513
5K → 10K28893-865#4513#5378
10K → 15K15596-581#5378#5959
15K → 20K31326-295#5959#6254
20K → Half2618+8#6254#6246
Half → 25K38211-173#6246#6419
25K → 30K8973-965#6419#7384
30K → 20M11471-460#7384#7844
20M → 21M8441-433#7844#8277
21M → 35K10257-247#8277#8524
35K → 23M12550-538#8524#9062
23M → 24M22232-210#9062#9272
24M → 40K17246-229#9272#9501
40K → 25.2M5199-194#9501#9695
25.2M → Finish29*202-173#9695#9868
TOTALS260*5615-5355

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing